Hydrocortisone is a steroid medication that treats inflammation in the body. The drug comes in an oral form to take by mouth, and a topical form to apply to the skin.
Some kids ask to be left alone as early as 5 or 6; others enjoy having your company until they start approaching puberty, closer to 9 or 10. Bathing alone, however, can be risky because of drowning dangers, and it can take just a few seconds for even older kids to slip and drown in only a few inches of water.
Since children are smaller in size and closer to the waters surface, keep the bubbles off. It is not good for them to inhale the chemicals or the bacteria. If you have a child under 12 make sure also that they do not go under the water often. This also is a way for the bacteria in the tubs to manifest inside their bodies. I have a 3 year old who loves the warmth of the water...we turn it down to about 90 degrees and do not turn on the jets when she is in the tub. No coughs, just fun.